body {
    background-image: url("https://ops-manage-1310044352.cos.ap-shanghai.myqcloud.com/img/background.jpg");
    background-size: cover;
    background-repeat: no-repeat;
}
.container {
    height: 100%;
    display: flex;
    padding-top: 250px;
    justify-content: center;
    padding-left: 500px;
}
